baber/WOPTO huggingface dataset:
Patent CA-2002893-A1 (CA)
Title: Inhibition of polymerization during distillation of monomers
Inventor: LEVY LEON B
IPC: C07C67/54
Filed: 1989-11-14
Abstract: ABSTRACT          Unintentional or premature polymerization of ethylenically unsaturated organic compounds, such as acrylic acid and monomeric acrylates, during distillation is inhibited by means of a phenolic inhibitor and a manganese or cerium alkanoate of a C5 to C19 monocarboxylic acid.  Compositions of ethylenically unsaturated organic compounds with phenolic inhibitors and manganese or cerium alkanoates are also described.
Patent CA-2003018-A1 (CA)
Title: Dispositif d'orientation d'un atterrisseur
IPC: B64C25/50
Filed: 1989-11-15
Abstract: Le dispositif selon l'invention comprend un corps contenant un vilebrequin     auquel sont associés des vérins mobiles autour d'axes de pivotement      et reliés à des organes de distribution comprenant des circuits d'alimen-tation et de retour portés par le corps et débouchant en regard d'au moins une face   des vérins perpendiculaire à leur axe de pivotement    et comportant au moins un ori-fice de commande  .
Patent CA-2006428-A1 (CA)
Title: Vapor phase brazing method of al or al alloys
Inventor: YAMAGUCHI MOTOYOSHI
IPC: B23K1/015
Filed: 1989-12-21
Abstract: ABSTRACT        The present invention relates to a brazing method when join-ing an assembly comprising Al or Al alloy components and provides a vapor phase brazing method not necessitating a process to coat directly onto the assembly to be joined with flux.  It is characterized in that, when brazing Al or Al alloy components intervening a brazing material, these components are brazed in a nonoxidative atmosphere, the vapor of potassium fluoroaluminate complex existing therein.      This vapor adheres to the assembly in extremely small amount and in uniform state and destroys the oxidized film of Al on the surface thereof,  so that the wetting of brazing material is promoted, the brazing material flows evenly and the uniform fillet is formed at the joining point of assembly.  In addition, there are advantages that the consumption of flux is low to be economical, that the brazability of Mg-containing materials is enhanced, that the surface of joined product after the brazing is clean, and the like.
Patent CA-2006575-A1 (CA)
Inventor: SPERA VITTORIO
IPC: E04G17/04
Filed: 1989-12-22
Abstract: There is provided a modular assembly for poured concrete forming, including a plurality of interconnecting rigid panel members having a rear portion and front facing for contact with poured concrete to form a mold surface. The rear portion of the panel members provides at least two flanges extending generally rearwardly of the front facing, each of the flanges being longitudinally disposed respectively adjacent each of at least two opposed terminal edges of the panel members. Adjacent the front facing of the panel members, a stepped portion is provided at one of the terminal edges of the panels, and a corresponding protruding edge portion is provided at the other of its terminal edges thereof for intimate engagement with the stepped portion of an abutting panel member. The flanges of the panels each provides a mating surface for abutment in intimate contact with an adjacent flange of an abutting panel member. The flanges are adapted for releasably retaining a locking member for securing two abutting panel members. The locking member may be a key member received in slots respectively provided in adjacent flanges of two abutting panels. Alternatively, the locking member may be in the form of a clamp member or scissor type member for engagement with the flanges adjacent longitudinally extending lip members provided at the free terminal ends of the flanges for retaining such locking members.
Patent CA-2009972-A1 (CA)
Title: Fishing rod lighting system
Inventor: ROBINSON RANDOLPH W
IPC: A01K87/00
Filed: 1990-02-13
Abstract: ABSTRACT    The invention relates to lighting systems, for fishing rods, which are useful for proper handling and managing of such rods under poor ambient lighting conditions.  The lighting system directs light substantially in line with the fishing line and the eyelets on the pole part of the rod, without obstruction, so that all eyelets and the line therethrough may be clearly lighted.  In addition light can be directed to the line exit side of the reel, mounted on the handle part of the fishing rod, to assist in untangling or rethreading the line through the reel line guide.          The lighting system is also useful for other tasks to be performed under poor ambient light conditions.
Patent CA-2012643-A1 (CA)
Inventor: TAMURA AKIRA
IPC: C04B28/04
Filed: 1990-03-20
Abstract: Disclosed is a mortar.concrete composition comprising a polymer emulsion, a portland cement material and an aggregate, which is characterized in that the polymer emulsion is one prepared by neutralizing a seed polymer with an acid or a salt or by quaternizing it with a quaternizing agent, the surfaces of the emulsion grains being thereby highly densely cationated, where the seed polymer is formed by adding a monomer as represented by the following formula (I) or a mixture of the monomer (I) and copolymerizable ethylenic unsaturated monomer(s) (II) to a seed latex of a carboxyl-modified synthetic rubber latex or synthetic resin emulsion and polymerizing them:                     ( I ) The polymer of the invention may noticeably reinforce the strength of the shaped product even when the amount of the polymer added is small.  The polymer dispersion of the invention can be applied to not only the convnetional ordinary materials but also concrete construction materials, although the application to the latter has heretofore been considered economically impossible.
Patent CA-2013478-A1 (CA)
IPC: C01B31/36
Filed: 1990-03-30
Abstract: METHOD OF FORMING COATINGS CONTAINING AMORPHOUS                SILICON CARBIDE                         ABSTRACT           The invention is a method of forming a continuous coating of amorphous silicon carbide on the surface of articles by plasma enhanced chemical vapor deposition.  In the method, the chemical vapor comprises a silicon-containing cyclobutane, such as a silacyclobutane or a 1,3-disilacyclo-butane.  The coatings formed by the invention are useful for application to solar cells, for preventing corrosion of electronic devices, for forming interlevel dielectric layers between metallization layers of electronic devices and for providing abrasion resistance to surfaces.
Patent CA-2014175-A1 (CA)
Title: Bonding polyvinyl butyral and polyurethane
Inventor: CARTIER GEORGE E
IPC: B05D7/04
Filed: 1990-04-09
Abstract: 06-12(9859)A     ABSTRACT OF THE INVENTION BONDING POLYVINYL BUTYRAL AND POLYURETHANE     A process for inseparably bonding layers of plasticized partial polyvinyl butyral and polyurethane which comprises chemically reacting hydroxyl groups of the partial polyvinyl butyral with isocyanate groups associated with formation of the polyurethane.
Patent CA-2014750-A1 (CA)
Title: Visually enhanced football
Inventor: FINLEY CHARLES O
IPC: A63B43/00
Filed: 1990-04-18
Abstract: VISUALLY ENHANCED FOOTBALL               ABSTRACT OF THE DISCLOSURE      The longitudinal extent of a football is circumscribed with contrasting indicia so that upon rotation of the ball about substantially the longitudinal axis, a first visually distinctive image is produced.  When the ball rotates about substantially a transverse axis, a second visually distinctive image is produced. The indicia is of such form that it does not protrude substantially from the surface of the ball and does not adversely affect the normal flight and gripping of the ball.
Patent CA-2018886-A1 (CA)
Title: Process for making diamond, doped diamond, diamond-cubic boron nitride composite films at low temperature
Inventor: DESPHANDEY CHANDRA V
IPC: C23C14/00
Filed: 1990-06-13
Abstract: PROCESS FOR MAKING DIAMOND, DOPED DIAMOND, DIAMOND-CUBIC BORON NITRIDE COMPOSITE FILMS              AT LOW TEMPERATURE                 ABSTRACT OF THE INVENTION      A process and apparatus that may be used for the production of diamond and doped diamond films at high rates by activated reactive vapor deposition.  Carbon is evaporated in a vacuum chamber(10)  in the presence of atomic hydrogen containing plasma to form diamond precur-sors which then deposit on a substrate(24) located within the vacuum chamber.  The substrate temperature is main-tained at between about 20-600°C.
Patent CA-2018925-A1 (CA)
Title: Communication systems
Inventor: PICKIN JOHN R
IPC: H04M1/00
Filed: 1990-06-13
Abstract: - 11 -Abstract Title: Communication Systems A communication system fulfils the function of a private branch exchange (PBX) and includes a broad band highway in the form of an electrically conducting hard-wired loop (38). The loop (38) is capable of transmitting voice and data signals to a plurality of base stations (40, 42) around the loop, with each base station being capable of communicating by radio with terminal user equipment, such as portable handsets (16) in a cordless telephone system, facsimile machines, word processors or computers.
Patent CA-2021077-A1 (CA)
Title: Low compression set, oil and fuel resistant, liquid injection moldable, silicone rubber
Inventor: JERAM EDWARD M
IPC: C08F290/00
Filed: 1990-07-12
Abstract: LOW COMPRESSION SET, OIL AND FUEL RESISTANT, LIQUID INJECTION MOLDABLE, SILICONE RUBBER              ABSTRACT OF THE DISCLOSURE     There  is  provided  an  organopolysiloxane  composition having low compression set as well as fuel and oil resistance in addition to high strength, good elongation,  and tear com-prising:     (A)     100 parts of a first component comprising:              (1)     a  vinyl-containing liquid organopoly-siloxane or a blend of vinyl-containing liquid polysiloxanes;              (2)     optionally, filler; and (3)     a catalyst; and (B)      from 1 to 100 parts, based on 100 parts of (A), of a hydrogen silicone! composition selected from the  class  consisting  of  hydrogen  containing silanes and hydrogen containing polysiloxanes and mixtures  of  hydrogen  containing  polysiloxanes with Pillers and high viscosity polysiloxanes;       (C)    optionally,  magnesium oxide  to  impart  oil  re-sistance;       (D)    optionally,  an MQ  resin  to  impart  fuel  resis-tance; and (E)    optionally, a cerium containing compound or,  al-ternatively,  tetramethyldivinyldisilazane  to  im-part low compression set.
Patent CA-2029236-A1 (CA)
Title: High capacity injection molding
Inventor: FARRELL JOHN J
IPC: B29C45/53
Filed: 1990-11-02
Abstract: HIGH CAPACITY INJECTION MOLDING            ABSTRACT OF THE DISCLOSURE     An injection molding machine has a high volume cylinder with a piston slidably disposed in the cylinder.  The piston is formed with channels and check valves for selective communication from the back of the cylinder to the front of the cylinder.  A vertically disposed screw plasticizer provides molten thermoplastic material to the back of the cylinder, which material flows to the front of the cylinder with rearward movement of the piston.  When the front of the cylinder is filled with thermoplastic material, the piston is moved forewardly to inject the thermoplastic material into a mold.  A reciprocating screw plasticizer first assists in filling the front of the cylinder, and then in completing the injection molding under a high pressure.   Novel composite thermoplastic products may be produced.
Patent CA-2029301-A1 (CA)
Inventor: VEMISHETTI PURUSHOTHAM
IPC: C07H19/16
Filed: 1990-11-05
Abstract: Abstract Of the Disclosure There is disclosed a process for synthesizing 2'-fluoro-2',3'-dideoxyarabinofuranose derivatives of inosine and adenine on a large scale which involves coupling of a fluorosugar derivative and a purine reactant to provide a purine nucleoside intermediate which is then deoxygenated. 6-Chloro or 6-benzamidopurine and 1,3,5-tri-0-benzoyl-2-deoxy-2-fluoroarabinofuranose are used as starting materials.
Patent CA-2029400-A1 (CA)
IPC: B60K25/02
Filed: 1990-11-06
Abstract: The invented interconnect casing includes first and second flanges, a spacer associated with and intermediate the first and second flanges, an aperture in the spacer, and a bracket arm attached to one of the flanges for supporting a driven device. The invented power divider includes an engine having a drive shaft, a first flange mounted to the engine adjacent the drive shaft, a second flange mounted to a first device, a spacer that is associated with and intermediate the first and second flanges, an aperture in the spacer allowing access to the drive shaft, and a bracket arm attached to and extending from one of the flanges for supporting a second device.
Patent CA-2029962-A1 (CA)
Title: Apparatus to prevent the overfilling of a storage bin with granular matter
Inventor: BOYCHUK WILLIAM
IPC: B65D88/54
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus to prevent the overfilling of a storage bin with granular matter consisting of a body and a clamp for securing the body adjacent to a top opening of a storage bin. An arm is provided having a first end and a second end.  The first end is pivotally mounted to the body.   A paddle is secured to the second end of the arm.  A switch is secured to the body.   The switch is activated by movement of the arm. The  switch  is  adapted  to  be  coupled  with  associated apparatus, such as an auger.  Granular matter filling the bin exerts a force upon the arm causing the arm to pivot whereby the switch turns off  the auger.   A pivotal connected is provided int he body for adjusting the attitude of the arm to suit  the  settling  characteristics  of  differing  types  of granular matter.
Patent CA-2033297-A1 (CA)
Title: Rectangular capillaries for capillary electrophoresis
Inventor: ZARE RICHARD N
IPC: G01N27/447
Filed: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE An  elongated  or  rectangular  cross-section capillary   is   disclosed   for   use   in   capillary electrophoresis   using   optical   detection.      With rectangular capillaries, heat is efficiently dissipated which permits large volume applications in capillary electrophoresis.   In addition,  the increase in cell pathlength   produces   significant   improvements   in absorbance detection sensitivity. This advantage is also important  for  laser-induced  fluorescence,   optical rotation,  and  other  pathlength-dependent  detection schemes.    Because  flat  walls  produce  less  optical distortion than circular capillary walls,  rectangular capillaries are particularly useful when parameters such as    refractive    index,    photodeflection,    direct visualization  or  particle  counting  are  used  for detection.      Capillary   electrophoresis   employing rectangular  capillaries  allows  for  two-dimensional separations.
Patent CA-2035592-A1 (CA)
Title: Segmented copolymers of .epsilon.-caprolactone and glycolide
Inventor: BEZWADA RAO S
IPC: D01F6/84
Filed: 1991-02-04
Abstract: Crystalline copolymer comprising the reaction product of: a) a predominant amount of a high molecular weight prepolymer of .epsilon.-caprolactone and glycolide, and b) the balance glycolide. A surgical device such as a surgical filament, in particular a surgical suture, prepared by injection molding or melt spinning the crystalline copolymer.
Patent CA-2035593-A1 (CA)
Title: Inhaler device with counter/timer means
Inventor: DESSERTINE PAULINE
IPC: A61M15/00
Filed: 1991-02-04
Abstract: The present invention is directed to a device for inhaling medicine from an inhalation canister with a spray stem.  It includes a hollow-bodied tubular main body having a back end adapted to receive an inhalation canister and a front end adapted for placement to or in a mouth, as well as a spray-directing element fixedly located within the main body, a counter and a timer. The spray-directing element has a continuous opening with an insert end for receiving a spray stem of an inhalation canister and a spray end for directing sprays of medicine through and out of the front end of the main body when an inhalation canister is activated by a user.  The counter is connected to the main body for displaying a count of total activations of an inhalation canister and is advanced by each activation of an inhalation canister.  The timer keeps track of time between inhalations for the user.  Both the counter and the timer are resettable and are preferably electronic and may be contained in a single unit.
Patent CA-2036977-A1 (CA)
Title: Imidazopyridazines, their production and use
Inventor: MIYAKE AKIO
IPC: A61P11/06
Filed: 1991-02-25
Abstract: An imidazo [1,2-b]pyridazine compound of the formula (I):    wherein R1 is a halogen atom or a lower alkyl group optionally having substituent(s), R2 and R3 are, independently, a hydrogen atom, a lower alkyl group optionally having substituent(s), a cycloalkyl group or a phenyl group optionally having substituent(s) or R2 and R3 together with the adjacent nitrogen atom to which they bond may form a heterocyclic ring optionally having substituent(s), X is an oxygen atom or S(O)k (k is zero to two), a group   is a bivalent three to seven membered homocyclic or heterocyclic group optionally having substituent(s), m1 and m2 each is an integer of 0 to 4 and n is an integer of 0 or 1; or its salt, which is useful as antiasthmatics..
Patent CA-2037918-A1 (CA)
Title: Code distribution multiple access communication system with user voice activated carrier and code synchronization
Inventor: DE GAUDENZI RICCARDO
IPC: H04J13/00
Filed: 1990-07-31
Abstract: A communication system comprising a master control station and user terminals, in which synchronization in the outward link is achieved by transmitting a master code with the same clock frequency and carrier as the communication signals, wherein the master code is transmitted continuously and with greater power than that of the return link signals, and wherein the user voice activated message transmission carrier is broken during the pauses in a message.  The invention relates in particular to a mobile satellite communications system.
Patent CA-2039282-A1 (CA)
Title: Electronic safety device for trucks
Inventor: NATI NEVIO
IPC: B60K28/06
Filed: 1991-03-27
Abstract: Abstract The device utilizes two sensors (1, 7) of identical specification, and a light source (3), all of which mounted to a single bracket and directed at the road surface (2) in such a way that the beam from the source is reflected back at the sensors; the sensors are wired into a comparator (8) of which the output signal is used to pilot the activation of an alarm (6), and becomes operative whenever the signals from the two sensors become dissimilar by reason of the different luminous intensities and/or wavelengths in the beam when reflected in part by the natural road surface (2), and in part by the white or yellow lines (4) bordering a traffic lane or a hard shoulder.
Patent CA-2042175-A1 (CA)
Title: Polyester compositions exhibiting enhanced melt viscosity
Inventor: TYRELL JOHN A
IPC: C08K5/098
Filed: 1991-05-09
Abstract: ABSTRACT OF THE DISCLOSURE Blow  moldable   polyester   compositions   are provided.    The   polyester   compositions   contain respective amounts of thermoplastic polyester resin, salt   of   aliphatic   polycarboxylic   acid   and multifunctional  epoxide.   The compositions exhibit suitable melt strength for blow molding thereof.
Patent CA-2042638-A1 (CA)
Title: 4-alkylamino-6-(c3-5-hydrocarbyl)thieno [2,3-b]thiopyran-2-sulfonamide-7,7-dioxides
Inventor: BALDWIN JOHN J
IPC: A61K31/38
Filed: 1991-05-15
Abstract: TITLE OF THE INVENTION 4-ALKYLAMINO-6-(C3-5-HYDROCARBYL)THIENO[2,3-b] THIOPYRAN-2-SULFONAMIDE-7,7-DIOXIDES            ABSTRACT OF THE DISCLOSURE          4-Alkylamino-6-(C3-5-hydrocarbyl)thieno[2,3-b ]thiopyran-2-sulfonamide-7,7-dioxides wherein the 4-alkylamino group is an ethylamino or propylamino are powerful carbonic anhydrase inhibitors useful in the treatment of ocular hypertension and glaucoma associated therewith.
Patent CA-2042675-A1 (CA)
Title: Enhanced subscriber line interface circuit
Inventor: WARNER MICHAEL
IPC: H04M7/00
Filed: 1991-05-15
Abstract: An enhanced subscriber line interface circuit for a digital switching system over which a connection is established between a digital switching system and a subscriber instrument via a subscriber line.  The enhanced subscriber line interface circuit includes a line configuration and protection circuit connected to the subscriber line and to a thick-film hybrid module.  The thick-film hybrid module comprises in combination a high voltage interface circuit and a PCM conversion circuit. The high voltage interface circuit provides power to the subscriber line, converts received analog voice signals transmitted from the subscriber instrument into differential voltage voice signals and detects the subscriber lines status.  The PCM conversion circuit is connected to the high voltage interface circuit and is disposed to convert received differential voice signals into PCM digital signals.  A line control interface circuit is also provided located remote from the thick-film module. The line control interface circuit receives control signals from a peripheral processor of the digital switching system and controls the operation of the circuits of the thick-film hybrid module.  Additionally, the line control interface circuit receives subscriber line information from the high voltage interface circuit which it passes on to the peripheral processor.  A time slot assignment circuit connected to the peripheral processor is arranged to develop and transmit to the PCM conversion circuit time slot assignment information and to connect the PCM digital signals from the enhanced subscriber line interface circuit to the digital switching system.
Patent CA-2048741-A1 (CA)
Inventor: TOTH THOMAS L
IPC: G21K1/02
Filed: 1991-08-08
Abstract: 15CT03515 A CT apparatus reduces errors in projection data acquired in helical scanning. The imaged object moves concurrently along a translation axis and the x-ray beam is periodically translated with the imaged object so as to subtend a single predetermined volume element during the acquisition of one projection set of data for a first slice. The x-ray beam then returns to its starting position and tracks a second predetermined volume element within a next slice. The x-ray beam may be translated by moving the focal point or a collimator or a combination of both.
Patent CA-2049058-A1 (CA)
Title: Dihydropyrimidine antiallergy agents
Inventor: COOPER KELVIN
IPC: C07D403/10
Filed: 1990-03-09
Abstract: A compound of formula (I), where Ar is optionally substituted phenyl or methylenedioxyphenyl or benzothienyl, R1 is alkyl, R2 is selected from hydroxy, alkoxy, alkylthio, alkyl and optionally substituted phenyl or amino, and "Het" is a heterocyclic group.  The compounds are platelet activating factor inhibitors.
Patent CA-2049609-A1 (CA)
Title: Low moisture chewing gum
Inventor: BONICA VINCENT C
IPC: A23G4/06
Filed: 1991-08-21
Abstract: ABSTRACT OF THE DISCLOSURE A low-moisture gum includes about 30 to about 90 percent of a gum base with a softening point from about 70°C to about 100°C; from about 0.1 to about 20 percent of a water-insoluble plasticizer; from about 0 to about 65 percent solid bulk sweetener; less than about 0.5 percent water; and substantially free of humectant.